Let’s make sure this is due to Element Binding first off. As per the linked thread, open the .dyn in a text editor, search for the “binding” flag and make sure it’s empty. If not, close all your Revit instances and manually delete the content in that section of the text in your text editor. Then save the file as a new document (keep thr .dyn extension), and see if that causes it to only trigger the UI once.
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